IOS Sqlite用户界面增删改查案例

//
//  UserDB.h
//  SqliteDemo
//
//  Created by 赵超 on 14-8-27.
//  Copyright (c) 2014年 赵超. All rights reserved.
//

#import "BaseDB.h"
#import "UserModel.h"

@interface UserDB : BaseDB{
    
}
//单例
+(id)shareUserDB;
//创建User表
-(void)creatTableWithDataBaseName:(NSString*) dbName;
//添加一个UserModel
-(BOOL)addUser:(UserModel*)userModel dbName:(NSString*)dbName;
//改动一个UserModel
-(BOOL)updateUser:(UserModel*)userModel dbName:(NSString*)dbName;
//查询全部
-(NSArray*)findAllUser:(NSString*)dbName;
//删除一个对象
-(BOOL) deleteUser:(UserModel*)userModel dbName:(NSString*)dbName;

@end

//
//  UserDB.m
//  SqliteDemo
//
//  Created by 赵超 on 14-8-27.
//  Copyright (c) 2014年 赵超. All rights reserved.
//

#import "UserDB.h"

@implementation UserDB

static UserDB * db;

+(id) shareUserDB{
    if (db==nil) {
        db= [[UserDB alloc] init];
    }
    return  db;
}

-(void)creatTableWithDataBaseName:(NSString*) dbName{
    NSString *sql=@"create table user( userName text primary key,passWord text, userEmail text)";
    [self createTable:sql dataBaseName:dbName];
    
}

-(BOOL) deleteUser:(UserModel*)userModel dbName:(NSString*)dbName{
        NSString *sql=@"delete from user where userName =?";
        NSArray *params=@[ userModel.userName];
     return  [self execSql:sql parmas:params dataBaseName:dbName];
}


-(BOOL)addUser:(UserModel *)userModel dbName:(NSString *)dbName{
    NSString *sql=@"insert into user (userName,passWord,userEmail) values (?,?,?
)";
    NSArray *params=@[userModel.userName,userModel.passWord,userModel.userEmail];
    return  [self execSql:sql parmas:params dataBaseName:dbName];
}
-(NSArray*) findAllUser:(NSString *)dbName{
    NSString *sql=@"select userName,passWord,userEmail from user";
    NSArray *result= [self selectSql:sql parmas:nil dataBaseName:dbName];
    NSMutableArray *users=[NSMutableArray array];
    for (NSDictionary *dic in result) {
        UserModel *user=[[UserModel alloc] init];
        user.userName=[dic objectForKey:@"userName"];
        user.passWord=[dic objectForKey:@"passWord"];
        user.userEmail=[dic objectForKey:@"userEmail"];
        [users addObject:user];
    }
    
    return users;
    
}

-(BOOL)updateUser:(UserModel *)userModel dbName:(NSString *)dbName{
    NSString *sql=@"update user set userName=?
,passWord=?,userEmail=? where userName=?";
    NSArray *params=@[userModel.userName,userModel.passWord,userModel.userEmail,userModel.userName];
    
    return [self execSql:sql parmas:params dataBaseName:dbName];
    
}


@end